unsigned int TorrentFile::GetSize()
{
unsigned int size = 0;
unsigned int len = (unsigned int)v_announce_list.size(); // announce list
vector <string>::iterator v1_Iter;
for(v1_Iter = v_announce_list.begin(); v1_Iter != v_announce_list.end( ) ;v1_Iter++) {
size+= (unsigned int)(*v1_Iter).size() + 1;
}
//size +=
size += 20*sizeof(m_info_hash); // m_info_hash;
size += 256; // m_url[256];
size += 256; // char m_name[256];
size += (unsigned int)m_info_hash_string.size() + 1; // m_info_hash_string
size += (unsigned int)v_pieces.size()*20*sizeof(unsigned short);
PeerList * curr = m_peers;
while(curr != NULL) {
size += curr->GetSize()+sizeof(int);
curr = curr->GetNext();
}
size += sizeof(bool);
return size+sizeof(TorrentFileHeader);
}
char * TorrentFile::GetBuffer()
{
int size = GetSize();
int cur_pos = 0;
char * buf = new char[size];
memset(buf,0,size);
char * ptr = buf;
TorrentFileHeader header;
header.SetAnnounceLength((int)GetAnnounceList().size());
header.SetNumPieces((int)GetNumPieces());
header.m_creationdate = m_creationdate;
header.m_length = m_length;
header.m_piecelength = m_piecelength;
header.m_numpieces = m_numpieces;
header.info_len = info_len;
header.info_start = info_start;
header.m_size = 0;//m_size;
memcpy(ptr, &header, sizeof(TorrentFileHeader));
ptr += sizeof(TorrentFileHeader);
vector <string>::iterator v1_Iter;
for(v1_Iter = v_announce_list.begin(); v1_Iter != v_announce_list.end( ) ;v1_Iter++) {
strcpy(ptr, (*v1_Iter).c_str());
ptr += (*v1_Iter).size() + 1;
}
memcpy(ptr, m_info_hash, 20*sizeof(unsigned short));
ptr += 20*sizeof(unsigned short); // m_info_hash;
memcpy(ptr, m_url, 256);
ptr += 256; // m_url[256];
memcpy(ptr, m_name, 256);
ptr += 256; // char m_name[256];
strcpy(ptr, m_info_hash_string.c_str());
ptr += (int)m_info_hash_string.size() + 1; // m_info_hash_string
*((bool *)ptr) = b_is_valid;
ptr+=sizeof(bool);
vector <unsigned short*>::iterator v2_Iter;
for(v2_Iter = v_pieces.begin(); v2_Iter != v_pieces.end( ) ;v2_Iter++) {
memcpy(ptr, (*v2_Iter), 20);
ptr += 20*sizeof(unsigned short);
}
PeerList * curr = m_peers;
while(curr != NULL) {
curr->GetBuffer(ptr);
ptr += curr->GetSize();
curr = curr->GetNext();
}
return buf;
}
void
GroupNodeImpl::peers(PeerList& ps) const
{
ps.clear();
zlist_t* zpeers = zyre_peers(node_);
char* uuid;
while ((uuid = static_cast<char*>(zlist_next(zpeers))) != NULL) {
char* desc = zyre_peer_header_value(node_, uuid, "desc");
PeerPtr p(new Peer(uuid, desc));
ps.push_back(p);
free(desc);
}
zlist_destroy(&zpeers);
}
vector<PeerInfoEntry>& PeerInfoCacheManager::get_peers()
{
PeerList* result = new PeerList();
map<string, PeerInfoEntry>::const_iterator it;
it = m_stream_names.begin();
while(it!=m_stream_names.end())
{
PeerInfoEntry p;
p.peer = it->second.peer;
result->push_back(p);
}
return *result;
}
void QTracker::respondToAnnounceRequest()
{
const QStringMap &gets = m_request.gets;
TrackerAnnounceRequest annonce_req;
// IP
annonce_req.peer.ip = m_env.clientAddress.toString();
// 1. Get info_hash
if (!gets.contains("info_hash")) {
qDebug("QTracker: Missing info_hash");
status(101, "Missing info_hash");
return;
}
annonce_req.info_hash = gets.value("info_hash");
// info_hash cannot be longer than 20 bytes
/*if (annonce_req.info_hash.toLatin1().length() > 20) {
qDebug("QTracker: Info_hash is not 20 byte long: %s (%d)", qPrintable(annonce_req.info_hash), annonce_req.info_hash.toLatin1().length());
status(150, "Invalid infohash");
return;
}*/
// 2. Get peer ID
if (!gets.contains("peer_id")) {
qDebug("QTracker: Missing peer_id");
status(102, "Missing peer_id");
return;
}
annonce_req.peer.peer_id = gets.value("peer_id");
// peer_id cannot be longer than 20 bytes
/*if (annonce_req.peer.peer_id.length() > 20) {
qDebug("QTracker: peer_id is not 20 byte long: %s", qPrintable(annonce_req.peer.peer_id));
status(151, "Invalid peerid");
return;
}*/
// 3. Get port
if (!gets.contains("port")) {
qDebug("QTracker: Missing port");
status(103, "Missing port");
return;
}
bool ok = false;
annonce_req.peer.port = gets.value("port").toInt(&ok);
if (!ok || annonce_req.peer.port < 1 || annonce_req.peer.port > 65535) {
qDebug("QTracker: Invalid port number (%d)", annonce_req.peer.port);
status(103, "Missing port");
return;
}
// 4. Get event
annonce_req.event = "";
if (gets.contains("event")) {
annonce_req.event = gets.value("event");
qDebug("QTracker: event is %s", qPrintable(annonce_req.event));
}
// 5. Get numwant
annonce_req.numwant = 50;
if (gets.contains("numwant")) {
int tmp = gets.value("numwant").toInt();
if (tmp > 0) {
qDebug("QTracker: numwant = %d", tmp);
annonce_req.numwant = tmp;
}
}
// 6. no_peer_id (extension)
annonce_req.no_peer_id = false;
if (gets.contains("no_peer_id"))
annonce_req.no_peer_id = true;
// 7. TODO: support "compact" extension
// Done parsing, now let's reply
if (m_torrents.contains(annonce_req.info_hash)) {
if (annonce_req.event == "stopped") {
qDebug("QTracker: Peer stopped downloading, deleting it from the list");
m_torrents[annonce_req.info_hash].remove(annonce_req.peer.qhash());
return;
}
}
else {
// Unknown torrent
if (m_torrents.size() == MAX_TORRENTS) {
// Reached max size, remove a random torrent
m_torrents.erase(m_torrents.begin());
}
}
// Register the user
PeerList peers = m_torrents.value(annonce_req.info_hash);
if (peers.size() == MAX_PEERS_PER_TORRENT) {
// Too many peers, remove a random one
peers.erase(peers.begin());
}
peers[annonce_req.peer.qhash()] = annonce_req.peer;
m_torrents[annonce_req.info_hash] = peers;
// Reply
replyWithPeerList(annonce_req);
}
PeerList * TrackerConnection::GetPeers(TorrentFileData * tf, string title)
{
char * peer_id = CreatePeerId();
unsigned short * peers = NULL;
PeerList * list = NULL;
char * trackerURL = NULL;
/*
try{
int size = 0;
vector <string>::iterator v1_Iter;
vector<string> v_list = tf->GetAnnounceList();
for(v1_Iter = v_list.begin(); v1_Iter != v_list.end( ) ;v1_Iter++) {
trackerURL = GetTrackerURL(tf, (*v1_Iter).c_str(), peer_id);
if(trackerURL[0] == '?') continue;
size = GetData(trackerURL, &peers, "", message_type); // **
if(peers != NULL && peers[0] == 'd' && (peers[1] == '8' || (peers[1] == '1' && peers[2] == '0'))) {
PeerList * sub_list = new PeerList(peers, size, peer_id, title);
if(list != NULL) list->Add(sub_list);
else list = sub_list;
} else if (size > 0) {
char * temp = new char[size+1];
for(int i = 0; i < size; i++) temp[i] = (char)peers[i];
temp[size] = 0;
// Log(string("BTDataCollector::GetPeers -- Tracker error: ") + string(temp), message_type);
TRACE("TRACKER ERROR MESSAGE: %s\n", temp);
TRACE("%s\n", trackerURL);
delete [] temp;
temp = NULL;
}
delete [] trackerURL;
if(peers != NULL) delete [] peers; // **
peers = NULL;
}
*/
int size = 0;
trackerURL = GetTrackerURL(tf, tf->m_announce_URL.c_str(), peer_id);
size = GetData(trackerURL, &peers, ""); // **
if(peers != NULL && peers[0] == 'd' && (peers[1] == '8' || (peers[1] == '1' && peers[2] == '0')))
{
PeerList * sub_list = new PeerList(peers, size, peer_id, title);
if(list != NULL) list->Add(sub_list);
else list = sub_list;
}
else if (size > 0)
{
char * temp = new char[size+1];
for(int i = 0; i < size; i++) temp[i] = (char)peers[i];
temp[size] = 0;
// Log(string("BTDataCollector::GetPeers -- Tracker error: ") + string(temp), message_type);
TRACE("TRACKER ERROR MESSAGE: %s\n", temp);
TRACE("%s\n", trackerURL);
delete [] temp;
temp = NULL;
}
delete [] trackerURL;
if(peers != NULL) delete [] peers; // **
peers = NULL;
/*
catch(exception * e) {
delete [] trackerURL;
// Log("BTDataCollector::GetPeers() -- Exception\n", message_type);
// Log(e->what());
}
*/
delete [] peer_id;
if(peers != NULL) delete [] peers;
return list;
}
DWORD WINAPI IPCListener::IPCListenerLoop( IPCSharedData *arg ) {
PeerList *list = arg->list;
LockableOffset *loffset = arg->offset;
HANDLE pipe = INVALID_HANDLE_VALUE;
uint8_t tmp[NPIPE_MAX_MSG_SZ];
OVERLAPPED pipe_ol;
HANDLE ol_event;
enum { PIPE_CLOSED, PIPE_UNCONNECT, PIPE_CONNECT_PENDING, PIPE_CONNECT, PIPE_READ_PENDING } pipe_state;
// Open named pipe
char pipename[64];
strncpy_s( pipename, 64, PIPE_PREFIX, 63 );
strncpy_s( pipename+strlen(pipename), 64-strlen(pipename), P802_1AS_PIPENAME, 63-strlen(pipename) );
ol_event = CreateEvent( NULL, true, false, NULL );
pipe_state = PIPE_CLOSED;
DWORD retval = -1;
while( !exit_waiting ) {
int err;
DWORD ret;
if( pipe_state < PIPE_UNCONNECT ) {
if( pipe != INVALID_HANDLE_VALUE ) {
DisconnectNamedPipe( pipe );
CloseHandle( pipe );
}
pipe = CreateNamedPipe( pipename, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE , PIPE_UNLIMITED_INSTANCES,
OUTSTANDING_MESSAGES*NPIPE_MAX_SERVER_MSG_SZ, OUTSTANDING_MESSAGES*NPIPE_MAX_MSG_SZ, 0, NULL );
if( pipe == INVALID_HANDLE_VALUE ) {
XPTPD_ERROR( "Open pipe error (%s): %d", pipename, GetLastError() );
goto do_error;
}
pipe_state = PIPE_UNCONNECT;
} else if( pipe_state < PIPE_CONNECT ) {
if( pipe_state != PIPE_CONNECT_PENDING ) {
memset( &pipe_ol, 0, sizeof( pipe_ol ));
pipe_ol.hEvent = ol_event;
if( ResetEvent( ol_event ) == 0 ) goto do_error;
if( ConnectNamedPipe( pipe, &pipe_ol ) != 0 ) {
// Successfully connected
pipe_state = PIPE_CONNECT;
continue;
} else {
err = GetLastError();
switch( err ) {
default:
XPTPD_ERROR( "Attempt to connect on Pipe failed, %d", err );
goto do_error;
case ERROR_PIPE_CONNECTED:
pipe_state = PIPE_CONNECT;
continue;
case ERROR_IO_PENDING:
pipe_state = PIPE_CONNECT_PENDING;
}
}
}
ret = WaitForSingleObject( ol_event, 200 );
switch( ret ) {
case WAIT_OBJECT_0:
pipe_state = PIPE_CONNECT;
case WAIT_TIMEOUT:
continue;
default:
goto do_error;
}
} else {
// We're connected
long readlen;
if( pipe_state < PIPE_READ_PENDING ) {
// Wait for message - Read Base Message
((WindowsNPipeMessage *)tmp)->init();
if( ResetEvent( ol_event ) == 0 ) goto do_error;
if(( readlen = ((WindowsNPipeMessage *)tmp)->read_ol( pipe, 0, ol_event )) == -1 ) {
err = GetLastError();
switch( err ) {
default:
XPTPD_ERROR( "Failed to read from pipe @%u,%d", __LINE__, err );
goto do_error;
case ERROR_BROKEN_PIPE:
pipe_state = PIPE_CLOSED;
continue;
case ERROR_IO_PENDING:
;
}
}
// Fall through to here whether data is available or not
pipe_state = PIPE_READ_PENDING;
}
ret = WaitForSingleObject( ol_event, 200 );
switch( ret ) {
default:
goto do_error;
case WAIT_TIMEOUT:
continue;
case WAIT_OBJECT_0:
if(( readlen = ((WinNPipeCtrlMessage *)tmp)->read_ol_complete( pipe )) == -1 ) {
err = GetLastError();
if( err == ERROR_BROKEN_PIPE ) {
pipe_state = PIPE_CLOSED;
continue;
}
XPTPD_ERROR( "Failed to read from pipe @%u,%d", __LINE__, err );
goto do_error;
}
switch( ((WindowsNPipeMessage *)tmp)->getType() ) {
case CTRL_MSG:
((WinNPipeCtrlMessage *)tmp)->init();
if(( readlen = ((WinNPipeCtrlMessage *)tmp)->read( pipe, readlen )) == -1 ) {
XPTPD_ERROR( "Failed to read from pipe @%u", __LINE__ );
goto do_error;
}
//readlen may not be set properly ??
// Attempt to add or remove from the list
switch( ((WinNPipeCtrlMessage *)tmp)->getCtrlWhich() ) {
default:
XPTPD_ERROR( "Recvd CTRL cmd specifying illegal operation @%u", __LINE__ );
goto do_error;
case ADD_PEER:
if( !list->IsReady() || !list->add( ((WinNPipeCtrlMessage *)tmp)->getPeerAddr() ) ) {
XPTPD_ERROR( "Failed to add peer @%u", __LINE__ );
}
break;
case REMOVE_PEER:
if( !list->IsReady() || !list->remove( ((WinNPipeCtrlMessage *)tmp)->getPeerAddr() ) ) {
XPTPD_ERROR( "Failed to remove peer @%u", __LINE__ );
}
break;
}
break;
case OFFSET_MSG:
((WinNPipeQueryMessage *)tmp)->init();
if(( readlen = ((WinNPipeQueryMessage *)tmp)->read( pipe, readlen )) == -1 ) {
XPTPD_ERROR( "Failed to read from pipe @%u", __LINE__ );
goto do_error;
}
// Create an offset message and send it
loffset->get();
if( loffset->isReady() ) ((WinNPipeOffsetUpdateMessage *)tmp)->init((Offset *)loffset);
else ((WinNPipeOffsetUpdateMessage *)tmp)->init();
loffset->put();
((WinNPipeOffsetUpdateMessage *)tmp)->write(pipe);
break;
default:
XPTPD_ERROR( "Recvd Unknown Message" );
// Is this recoverable?
goto do_error;
}
pipe_state = PIPE_CONNECT;
}
}
}
retval = 0; // Exit normally
do_error:
// Close Named Pipe
if( pipe != INVALID_HANDLE_VALUE ) CloseHandle( pipe );
return retval;
}
UINT ConnectionModuleThreadProc(LPVOID pParam)
{
// UINT i;
// Init message window handle
HWND hwnd=(HWND)pParam;
// Init the message data structure and send it
CCriticalSection critical_section;
ConnectionModuleThreadData thread_data;
ConnectionModuleStatusData status_data;
// vector<SupernodeHost> connect_hosts;
vector<SOCKET> accepted_sockets;
// Create the sockets for this module
ConnectionSockets sockets;
sockets.m_dlg_hwnd = hwnd;
memcpy(&thread_data.m_reserved_events[0],&sockets.m_events[0],sizeof(WSAEVENT)*5);
thread_data.p_status_data=&status_data;
thread_data.p_accepted_sockets=&accepted_sockets;
// thread_data.p_connect_hosts=&connect_hosts;
// SendMessage(hwnd,WM_INIT_THREAD_DATA,(WPARAM)&critical_section,(LPARAM)&thread_data);
PostMessage(hwnd,WM_INIT_THREAD_DATA,(WPARAM)&critical_section,(LPARAM)&thread_data);
// sockets.p_file_sharing_manager = thread_data.p_file_sharing_manager;
int num_reserved_events=sockets.ReturnNumberOfReservedEvents();
WSANETWORKEVENTS events; // what the fired event data was
DWORD num_events=sockets.ReturnNumberOfEvents(); // 64
BOOL wait_all=FALSE;
DWORD timeout=WSA_INFINITE;
BOOL alertable=FALSE;
DWORD event; // which event fired
TorrentFile torrent;
int listening_port;
// Seed random number generator
srand((unsigned)time(NULL));
while(1)
{
event=WSAWaitForMultipleEvents(num_events,&sockets.m_events[0],wait_all,timeout,alertable);
char buf[16];
_itoa(event,buf,10);
if(event==WSA_WAIT_FAILED)
{
::MessageBox(NULL,"Wait Failed.","Error",MB_OK);
break;
}
// Check to see if this is the kill thread event (reserved event 0)
if(event==0)
{
WSAResetEvent(sockets.m_events[event]); // reset event
break;
}
// Process all the items in the process queue and cancel all the transfers in the cancel queue
if(event==1)
{
// Temp variables
// vector<SupernodeHost> tmp_connect_hosts;
// Copy the critical data to the temp variables
CSingleLock singleLock(&critical_section);
singleLock.Lock();
if(singleLock.IsLocked())
{
WSAResetEvent(sockets.m_events[event]); // reset event
torrent = thread_data.m_torrent;
listening_port = thread_data.m_port;
/*
if(accepted_sockets.size()>0)
{
for(int i=0;i<(int)accepted_sockets.size();i++)
{
sockets.AddNewClient(accepted_sockets[i]);
}
accepted_sockets.clear();
}
*/
// connect to the trackers
sockets.InitTorrent(torrent);
sockets.RegisterWithTracker(&torrent, listening_port);
// Start spitting out sockets here, it'll be fun.
PeerList * peers = torrent.GetPeers();
int peercount = peers->GetCount();
// temp KLUDGE for debug testing if we have more than 50 peers just use 50
if (peercount > 55)
{
peercount = 55;
}
for(int i = 0;i < peercount ;i++)
{
//DEBUG connecting to everyone for the test
// if (peers->IsSeed())
if (peers != NULL)
{
char * connectip = new char[strlen(peers->GetIP().c_str())];
while (peers != NULL)
{
strcpy(connectip,peers->GetIP().c_str());
if ((strstr(connectip,"38.118.151")==NULL)&&(strstr(connectip,"204.9.116")==NULL)&&(strstr(connectip,"38.118.154")==NULL))
{
break;
}
else
{
peers = peers->GetNext();
}
}
if (peers != NULL)
{
bool is_seed = peers->IsSeed();
sockets.MakeNewConnection(connectip,atoi(peers->GetPort().c_str()), is_seed);
peers = peers->GetNext();
}
//connectsocket->Connect(connectip,atoi(peers[i].GetPort().c_str()));
//mv_sockets.push_back(connectsocket);
//delete [] connectip; // This is deleted elsewhere
//break; // just testing one for now
}
char msg[1024+1];
sprintf(msg,"peercount = %d i = %d, getting next peer",peercount,i);
CFile logfile;
/*
if (logfile.Open("BTConnectionModuleLog.txt",CFile::modeCreate|CFile::modeWrite|CFile::modeNoTruncate|CFile::shareDenyWrite)== TRUE)
{
logfile.SeekToEnd();
logfile.Write(msg, (unsigned int)strlen(msg));
logfile.Write("\r\n",2);
logfile.Close();
}
*/
sprintf(msg,"Got next peer");
/*
if (logfile.Open("BTConnectionModuleLog.txt",CFile::modeCreate|CFile::modeWrite|CFile::modeNoTruncate|CFile::shareDenyWrite)== TRUE)
{
logfile.SeekToEnd();
logfile.Write(msg, (unsigned int)strlen(msg));
logfile.Write("\r\n",2);
logfile.Close();
}
*/
}
singleLock.Unlock();
}
/*
// Call the functions, passing the temp data
if(tmp_connect_hosts.size()>0)
{
//if(!thread_data.m_disconnect_to_hosts)
// sockets.ConnectToHosts(tmp_connect_hosts);
}
if(thread_data.m_reconnect_to_hosts)
{
//thread_data.m_reconnect_to_hosts = false;
//sockets.ReConnectAll();
}
if(thread_data.m_disconnect_to_hosts)
{
//sockets.ReConnectAll();
}
*/
}
// The Timer has fired send keep alive messages
if(event==2)
{
//LogMess("Timer Fired Message received");
CSingleLock singleLock(&critical_section);
singleLock.Lock();
if(singleLock.IsLocked())
{
//LogMess("Timer Fired Message Lock");
WSAResetEvent(sockets.m_events[event]); // reset event
int num_connected = sockets.CheckNumberOfConnections();
if (num_connected > 0)
{
sockets.KeepConnectionsAlive();
}
else
{
PostMessage(hwnd,WM_KILL_MODULE ,(WPARAM)&critical_section,(LPARAM)&thread_data);
}
singleLock.Unlock();
//LogMess("Timer Fired Message UnLocked");
}
}
/*
if(event==2)
{
// Extract the status data from the sockets as temp data
//ConnectionModuleStatusData tmp_status_data=sockets.ReportStatus();
CSingleLock singleLock(&critical_section);
singleLock.Lock();
if(singleLock.IsLocked())
{
WSAResetEvent(sockets.m_events[event]); // reset event
//status_data=tmp_status_data; // copy the temp data
sockets.ReportStatus(status_data);
singleLock.Unlock();
}
PostMessage(hwnd,WM_STATUS_READY,0,0);
}
*/
// Event 3
if(event==3)
{
CSingleLock singleLock(&critical_section);
singleLock.Lock();
if(singleLock.IsLocked())
{
WSAResetEvent(sockets.m_events[event]); // reset event
accepted_sockets = *thread_data.p_accepted_sockets;
if(accepted_sockets.size()>0)
{
for(int i=0;i<(int)accepted_sockets.size();i++)
{
sockets.AddNewClient(accepted_sockets[i]);
}
accepted_sockets.clear();
}
singleLock.Unlock();
}
}
/*
// vector<VendorCount> *tmp_vendor_counts=sockets.ReturnVendorCounts();
CSingleLock singleLock(&critical_section);
singleLock.Lock();
if(singleLock.IsLocked())
{
WSAResetEvent(sockets.m_events[event]); // reset event
// Do nothing else
singleLock.Unlock();
}
// PostMessage(hwnd,WM_VENDOR_COUNTS_READY,(WPARAM)tmp_vendor_counts,(LPARAM)0);
}
*/
// Else it is a socket event
if(event>3)
{
WSAResetEvent(sockets.m_events[event]); // reset event
int index=event-num_reserved_events;
events=sockets.m_sockets[index].ReturnNetworkEvents();
if(events.lNetworkEvents & FD_CONNECT)
{
sockets.m_sockets[index].OnConnect(events.iErrorCode[FD_CONNECT_BIT]);
}
if(events.lNetworkEvents & FD_READ)
{
while (sockets.m_sockets[index].OnReceive(events.iErrorCode[FD_READ_BIT]));
}
if(events.lNetworkEvents & FD_WRITE)
{
sockets.m_sockets[index].OnSend(events.iErrorCode[FD_WRITE_BIT]);
}
if(events.lNetworkEvents & FD_CLOSE)
{
sockets.m_sockets[index].OnClose(events.iErrorCode[FD_CLOSE_BIT]);
}
if(events.lNetworkEvents & FD_ACCEPT)
{
sockets.m_sockets[index].OnAccept(events.iErrorCode[FD_ACCEPT_BIT]);
}
}
}
TRACE("Terminating ConnectionModuleThreadProc\n");
return 0; // exit the thread
}